No mapping exists from object type System.Int32[] to a known managed provider native type

Question

I am getting above error in the following code. Here listid is a list of integers .

SqlConnection cn = new SqlConnection(str1);
SqlCommand cmd = new SqlCommand("select * from status where uid in {@values}", cn);
cn.Open();
cmd.Parameters.AddWithValue("@values",listid.ToArray())
SqlDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
//code here
}

Answer 1

You could change your query to:

SqlCommand cmd = new SqlCommand (String.Format ("SELECT * FROM status WHERE uid IN ({0})", String.Join (",", listid)));

and remove the AddWithValue() line.